Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
541996 | Microelectronics Journal | 2012 | 13 Pages |
This study presents a DVCC-based voltage-controlled dual slope operation square/triangular wave generator. The proposed configuration uses two differential voltage current conveyors (DVCCs) as active building blocks with four grounded passive components. The duty cycle of the proposed square/triangular wave generator can be adjusted by an input voltage source. The circuit also exhibits an independent control of its oscillation frequency free from the signal amplitude using a grounded resistor. This study also suggests a potentiometer-tuning scheme and a dual mode operation pulse width modulator (PWM) to extend the application of the proposed circuit. This study describes the circuit operations and discusses the non-ideal characteristics and design procedures of the proposed circuits. Prototype circuits were built using commercial ICs and discrete components. Is-Spice simulation and experimental results confirm the validity of the proposed circuits.
Graphical abstractDVCC-based voltage-controlled dual slope operation square/triangular wave generator.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► This study presents a DVCC-based voltage-controlled dual slope operation square/triangular wave generator. ► The duty cycle of the proposed square/triangular wave generator can be adjusted by an input voltage source. ► This paper also suggests a potentiometer-tuning scheme and a dual mode operation pulse width modulator (PWM).